Carbureter.



E. c. ROBERTS.

CARBURETER.

APPLICATION F ILED JULY-9, 917.

2 SHEETS-SHEET I.

Patented Dec. 81, 1918.-

E. c. aosems.

CARBURETER.

APPLICATION FILED JULY 9.1917- 1,,289,914. Patented Dec. 31, 1918.

2 SHEETS-SHEET 2.

28 E. [LE D]: 51715.

I of the vaporizer.

EDWARD ofnonnnrs, OF'S'ALTVILLE, VIRGINIA.

cannons-run.

Specification of Letters Patent.

Patented Dec. 31, 1918.

Application filed July 9, 1917: Serial No. 179,604.

'tain new and useful Improvement in Carbureters, of which the following is a specification.

The present invention relates to carbuto a device for reters and more particularly hydrocarbons,

carbureting air with heavy such as. kerosene, and the like, for use in internal combustion engines, and an object of the invention is to provide a device of this character, comprising a capillary feed for the fuel and a plurality of bafile disks for directing air in a sinuous path through the capillary feed for the hydro-carbon to effectively carburate the air to form a combustible mixture.

The above, and various other more or less important objects and itClVtlll'tflgGS'Of this invention will be in part described, and in part understood, from the following detailed description of the present preferred embodiment, the same being illustrated in the accompanying drawings wherein:

Figure 1 is a view in elevation of a hydrocarbon vaporizerconstructe'd according to the present invention,

Fig.2 is a'detail enlarged section taken longitudinally through the air heater.

Fig. 3 is a transverse section taken on the plane indicated by the line 3 -3 in 2.

Fig. 4 is a detail enlarged elevation. partly in section of the main body portion Fig. 5 is a through the air and fuel mixer at one side of the apparatus on the plane indicated by line 5- 5 in Fig. 4. r

Fig. 6 is a fragmentary side elevation of the air-distributing tube in said mixer.

Referring to these drawings, A and B designate two tanks or sources of supply adapted to contain hydro-carbon fuels of different specific gravities, such as: gasolene and kerosene respectively.

The tanks or containers A and B are connected by pipes 10. and 11 to the opposite ends of the distributing chamber or tank 12 which is shown in the present instance as in the form of a drum having closure flaps 13 on opposite ends to whichthe pipes 10 and 11 are connected. The drum 12 is provided between its ends, and preferably to 1 olene, or the transverse section taken ward one end thereof, with a partition 11 dividing the drum 12' into two compartments adapted to respectively receive the hydro-carbon fuels 2 of different specific gravities. Preferably, the partition 1& is located adjacent to the end of the drum 12 into which the pipe 10 opens to provide a relatively small .compartment for the gashigher grade of fuel.

An air feeding pipe 15 extends upwardly and diametrically through the opposite ends of the drum 12 at the opposite sides of the partition 11. The pipes 15 are connected, by T-couplings 1(5, or the like, to an air pipe 17 which leads from an air drum or casing 18 provided in its underside and at one end. 19. The pipe 17.

with an air inlet opening opens into the opposite end, and at the top side of the drum 18 to receive air therefrom after the an has passed longitudinally and upwardly through the casing or drum 18.

.A heating coil 20 is disposed within the drum or casing 18 and is connected to an exhaust pipe 21 which preferably leads from the exhaust of an internal combustion engine. The coil 20,receives the heated exhaust gases from the pipe 21 and is adapted to raise the temperature of air passing through'the casing 18, and to deliver the heated air to the air pipe 17.

Arranged about each pipe 15 is a liquid feeding wick 22 which, as shown in Figs. 4 and 5, is of cylindrical formation and entirely surrounds the pipe 15. The wick 22 extends upwardly through the drum 12 to a considerable extent about the pipe 15, and the drum 12 is provided with a tubular projection or casing 23 surrounding the wick 22 and tapering at its upper end to engage the wick. and to seal the casing 23 about the upper portion of the pipe 15.. The pipe 15 is provided, at its portions which extend through the casin 23, with a plurality of relatively large perforations or openings 24 whereby the suction of air upwardly through the pipe 15 will drawthe liquid absorbed by the wick into the pipe 15; The pipe 15, above the casing 23, is imperforate, and the pipes 15 are connected at their upper ends, by means of T-couplings 25 or the like, to a common manifold or supply pipe 26 which may manifold of an internal be connected direct ly to the intake combustion engine. The pipe 15 which extends through the smaller compartment of the drum 12 mayv iio' trolll valve 27 by means of which the ga solenaow the higher grade hydro-carbon fuel, may beou t-ofi' from the manifold pipe 26.

The pipe gtl 'is provided, between the nozzles 15, with a controlling valve 28 to regulate the flow of the vaporized heavier hydro? '29 are preferably located opposite thefopenings 2-l in the pipes ].5'-and are adapted to deflect the air passing upwardly through the pipes into the openings 2-1 to restrict the passage through} the pipes 15 at such points and thus increase the suction created by the air passing upwardly'through the tube. The wicks 22 extend down into the drums 12 adjacent to the bottom thereof so as to expose a. considerable length. of.

each wickto the fluid contained in the drum.

It is of course understood that the drum 12 may be in the form of a tank of suitable size to carry the desired quantity of fuel, and that the tanks A and B nated.

In use, if it is desired to start an engine by the use of the higher grade hydro-carbons, it is only necessary to close the valve 28 and open the valve 27. The suction of the engine is transmitted to the pipe 26 and the latter draws air upwardly through the pipe 15 from the pipe 17 and the drum or casing 18. The air thus drawn upwardly through the pipe; 15 is deflected by the baflie plates 29 and creates an increased suction at the openings 24. The fuel within the small compartment of the drum 12 is absorbed by the wicks 22 and carried upwardly into the casing 23. This absorbed fuel is drawn inwardly through the openings 2a and carried into the manifold 26 with the air which passes upwardly through the pipe 15.

As soon as the engineis started, the exhaust gases therefrom heat the coil 20 and the interior of the drum 18. The air passing through the drum 18 is thus raised to a relatively high temperature, and increases the vaporization of the fuel fed to sired to operate the engine on a less volatile hydro-carbon, such as kerosene, the valve 27 may be gradually closed and the valve 28 may be elimithe mixer, generally designated at 23. If it is now-de- 28 to the" engine.

It is of course understood that'the valves 27 and 28 may both be partly opened in or der to admix the fuels and thus obtain the maximum efficiency of the engine under certain conditions Which may befound in the use of the same, and for the purpose (if .economizihg in the consumption of the uel. r It is of course understood that various changes and modifications may be made in the details of construction and design of the above specifically described parts to adapt the device for application to motor vehicles, motor boa'ts'and other places met with during the use and installation of the device, without departing from the spirit of this invention; such changes and modifications being restricted only by the scope of the following claims.

I claim L In a carbureter, the combination of a drum, a casing rising from one end of the drum, a wick arranged in said casing and extending into the drum, an air pipe projecting upwardly through the drum, and throughthe casing, said air pipe having apertures in its sides in the portion passing through said casing, and a plurality of baffle disks within said air pipe for directing the air in a sinuous path through the pipe.

2. In a ca'rbureter, the combination, of 'a drum, an air pipe projecting upwardly through the drum and having perforations intermediate its end,"a casing communicating with and projecting from the drumand surrounding said air pipe, a Wick arranged in said casing and projecting into the drn to absorb fuel and feed the same into casing, a feed pipe connected to said air for drawing air upwardly therethrough for contact with the wick'to admix the fuel with air, and a plurality of horizontal baftiie v, 5. J. t;

d sks )ositioned in said air )i e in aline 4 ment with the adjacent perforations of the pipe, said'disks being smaller in diameter than the boreof the air pipe to direct the air in a sinuous path througlrthe air pipe.

EDWARD o. ROBERTS.- 

